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Updated: Mar 21, 2026
Fused Filament Fabrication FFF of Metal-Ceramic Components
Published on: January 11, 2019
Deformation of a ceramic/metal interface at the nanoscale
Lin Jiang1, Tao Hu2, Hanry Yang3
1Department of Chemical Engineering and Materials Science, University of California, Irvine, CA 92697, USA and Department of Chemical Engineering and Materials Science, University of California, Davis, CA 95616, USA. jmschoenung@ucdavis.edu julie.schoenung@uci.edu.
Abstract:
The mechanical response of heterophase interfaces has attracted substantial attention in recent years. Here, we utilized an in situ transmission electron microscopy (TEM) technique to isolate an individual nanoscale ceramic/metal interface and characterize its nanomechanical response. The interface, at which there was a Mg-rich segregation nanolayer between the single crystal ceramic (B4C) and the polycrystalline metal (Al alloy, AA5083), was determined to have a bond strength greater than 1.5 GPa. Bimodal failure and metallic grain rotation occurred in the metallic region, allowing the interface to accommodate a deformation strain of 5.4%. The roles of elemental segregation and nanoscale dimensions on interfacial debonding mechanisms are discussed.
